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Precision charm physics, m_c and alpha_s from lattice QCD
Preprint
C. T. H. Davies ,
E. Gregory ,
I. Kendall ,
C. McNeile ,
G. P. Lepage ,
I. Allison ,
R. Woloshyn ,
E. Dalgic ,
H. Trottier ,
E. Follana ,
R. Horgan ,
K. Hornbostel ,
J. Shigemitsu
2008-10-20
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Abstract
We present an update of results from the HPQCD collaboration on charm physics using the Highly Improved Staggered Quark action. This includes a precise determination of m_c using moments of current-current correlators combined with high-order continuum QCD perturbation theory. We also include an update on the determination of alpha_s from lattice QCD, preliminary results on the determination of m_b and a summary plot of the status of the gold-plated meson spectrum. There is an appendix on tackling systematic errors in fitting using the Bayesian approach.